Pipe-Bursting
Replace utilities without disturbing
surface structures. The Pipe Bursting process
can replace existing piping without
expensive excavation and restoration costs. Pipe bursting has several
distinct advantages over open-cut
trenching and other trenchless rehabilitation methods.
Pipe Bursting involves expanding and
breaking an existing utility and
simultaneously pulling in the new carrier line which is usually
Polyethylene pipe (HDPE). Pipe Bursting , historically, is done on pipes
that can fracture such as:
-
Cast Iron
-
Clay
-
PVC
-
Asbestos
& Concrete
-
Reinforced Concrete
Pipe
bursting is the only trenchless method of pipe replacement that allows for
the upsize of the original line. An entry or launch pit is dug at one end
of the failed line. An exit pit is dug at the end of the failed line. The
pneumatic pipe bursting tool enters the failed line at the launch pit.
A constant-tension winch is placed at the exit pit and guides the
pneumatic bursting tool through the run. As the pipe bursting tool travels
through the existing line (host pipe), it effectively burst the old line,
displacing the fragments into the surrounding soil while simultaneously
pulling in the new product pipe.
Advantages of Pipe Bursting:
-
Follows the existing path of the pipe
-
Reduces the potential for damage to adjacent utilities
-
Preferred technology
for upsizing existing pipes
-
Causes less traffic
disruption
-
Reduces excavation
and restoration costs
-
Allows installation
of a new pipe
